section.section
  header.section__header
    h3#property-defaults.section__h3 DEFAULTS
  div.section__content
    h4.section__h4 Description
    dl.section__dl
      dt.section__dt Type：
      dd.api-param-value Object
    p 静态属性，存储的是 Outline 对象默认配置选项：
    pre.section__pre
      code.section__code.
        Outline.DEFAULTS = {
          articleElement: '#article',
          selector: 'h2,h3,h4,h5,h6',
          title: '目录',
          scrollElement: 'html,body',
          position: 'relative',
          parentElement: '#aside',
          placement: 'rtl',
          showCode: true,
          anchorURL: '',
          stickyHeight: 0,
          homepage: '',
          git: '',
          tags: '',
          issues: '',
          tools: [],
          print: {
            element: '',
            title: ''
          },
          customClass: '',
          afterSticky: null,
          afterToggle: null,
          afterScroll: null,
          chapterTextFilter: null
        }
